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Using ANSI/ISA-99 standards to improve control system security

Article from: Industrial Ethernet Book, February 2012

Today, operators are being asked to isolate automation systems just as ever greater interconnectedness is demanded. Adding to these pressures is the growing fear of cyber attacks such as the infamous Stuxnet.

In this article Eric Byres explains how the ‘zone and conduit’ model included in the ANSI/ISA-99 security standards provides a framework for dealing with network security concerns, including fears of the " Son-of-Stuxnet".